import { v4 as uuidv4 } from 'uuid'
//生成一个随机字符串，且，每次执行不能变化，游客身份持久存储
export const getUUID = ()=>{
	let uuid_token = localStorage.getItem('UUIDTOKEN')
	if(!uuid_token){
		uuid_token = uuidv4();
		localStorage.setItem('UUIDTOKEN',uuid_token)
	}
	return uuid_token
}